Base | Representation |
---|---|
bin | 100100011000110111… |
… | …010110110110110101 |
3 | 10201211222121200000201 |
4 | 210120313112312311 |
5 | 1120004344323024 |
6 | 25541021440501 |
7 | 2552144263366 |
oct | 443067266665 |
9 | 121758550021 |
10 | 39071870389 |
11 | 15630063582 |
12 | 76a5110131 |
13 | 38b89ba346 |
14 | 1c6920bb6d |
15 | 103a2a0744 |
hex | 918dd6db5 |
39071870389 has 16 divisors (see below), whose sum is σ = 44724571200. Its totient is φ = 33896496384.
The previous prime is 39071870381. The next prime is 39071870393. The reversal of 39071870389 is 98307817093.
It is not a de Polignac number, because 39071870389 - 23 = 39071870381 is a prime.
It is a super-2 number, since 2×390718703892 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (39071870381) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622719 + ... + 1646620.
It is an arithmetic number, because the mean of its divisors is an integer number (2795285700).
Almost surely, 239071870389 is an apocalyptic number.
It is an amenable number.
39071870389 is a deficient number, since it is larger than the sum of its proper divisors (5652700811).
39071870389 is a wasteful number, since it uses less digits than its factorization.
39071870389 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3269412.
The product of its (nonzero) digits is 2286144, while the sum is 55.
The spelling of 39071870389 in words is "thirty-nine billion, seventy-one million, eight hundred seventy thousand, three hundred eighty-nine".
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